Electric plug lockbox



FIG. 1 is a top, rear, and right side perspective view of an electric plug lockbox showing my new design, with the hasp portion disengaged and the top raised;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of an electric plug and cord segment in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an electric plug lockbox, as shown and described. 